Solution for preserving wood.



UNIT straws rnrnr @FFIEGE.

FRIEDRICH SEIDENSCHNUR, F GHARLOUETENBURG, GERMANY.

SOLUTION FOR PRESERVING: WOOD.

No Drawing.

To all whom ma concern:

Be it known t at l, FRIEDRICH Snmnnsonnom'chemist, a subject of the King of Prussia and the German Emperor, residing at 12 Holtzendorfistreet; Charlottenburg,

near Berlin, Kingdom of Prussia, German Empire, have invented certaln new and useful Improvements in Solutions for Preserving Wood, of which the following is a specification.

. The present invention refersto a composition ofmatter for preserving porons-organic substances especially wood. The composition according to the present invention contains basicinorganic zinc salts which are insoluble in Water alone dissolved in disadvantage of splitting ofi free acid which exerts a deleterious efiect on wood. This in- Speciflcation of Letters Patent.

Application filed February 3, 1912. Serial No. 675,279.

Patented Nov. llllllltlo jury isprevented by the use of the present composition of matter because any free acid split 03 from aluminium salts would be neutralized by the basic zinc compounds.

For preserving the wood with the present solution I exhaust the air from the 'wood and force the solution into the pores of the wood under pressure. I may use the'following proportions:

Water 500 parts by weight Zinc oxychlorid 10 parts by weight Aluminium sulfate parts by weight ll claim:

1. Solution for preserving wood composed of water, zinc hydroxid and aluminium sul: fate, free of other soluble zinc salts.

2. Solution for preserving wood composed of water, a basic zinc compound insoluble by itself in water and aluminium sulfate free of other soluble zinc salts.

In testimony whereof I have aifixed my signature in presence of two witnesses.

FRIEDRICH SEIDENSCHNUR.

Witnesses HENRY HAsrnR, WOLDEMAR HAUPT. 

